Compact, stable 1 GHz femtosecond Er-doped fiber lasers

Byun, Hyunil; Sander, Michelle Y.; Motamedi, Ali; Shen, Huitao; Petrich, G.S.; Kolodziejski, L. A.; Ippen, Erich P.; Kärtner, Franz X.

doi:10.1364/ao.49.005577

Cited by 93 publications

(44 citation statements)

References 19 publications

(26 reference statements)

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“…Femtosecond pulses with multi-GHz repetition rates have been demonstrated from a range of Er-doped fiber lasers around 1.5 μm with average powers reaching 27 mW, using SESAMs or carbon nanotubes as mode-locking devices [15][16][17][18]. A femtosecond (~206 fs) Yb-doped fiber laser at 1025 nm has also been demonstrated with a PRF of 3 GHz and an average power up to 53 mW [19].…”

Section: Introductionmentioning

confidence: 99%

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Lagatsky¹,

Choudhary²,

Kannan³

et al. 2013

Opt. Express

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Abstract:We demonstrate passively mode-locked Yb 3+ -doped glass waveguide lasers in a quasi-monolithic configuration with a maximum pulse repetition frequency up to 15.2 GHz. A semiconductor saturable absorber mirror (SESAM) is used to achieve stable mode-locking around 1050 nm with pulse durations as short as 811 fs and an average power up to 27 mW. Different waveguide samples are also employed to deliver pulses with repetition rates of 4.9 GHz, 10.4 GHz and 12 GHz with an average power of 32 mW, 60 mW and 45 mW, respectively. The group velocity dispersion control in the cavity is provided by changing the gap between the SESAM and the waveguide end-face to facilitate a soliton mode-locking regime. Ferrari, and A. K. Kar, "1.5 GHz picosecond pulse generation from a monolithic waveguide laser with a graphene-film saturable output coupler," Opt. Express 21(7), 7943-7950 (2013). 23. ©2013 Optical Society of America

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Section: Introductionmentioning

confidence: 99%

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Lagatsky¹,

Choudhary²,

Kannan³

et al. 2013

Opt. Express

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“…1a. It strongly leverages previous work, particularly from IMRA, on the use of polarization maintaining (PM) sub-systems, a semiconductor saturable absorber (SESAM) to achieve self-mode-locking and waveguide periodically-poled lithium niobate (PPLN) for efficient frequency doubling [33,[40][41][42][43][44][45]. Below, we emphasize the design features critical for continuous coherent operation outside the laboratory, with additional details in the Appendix, before describing the comb performance.…”

Section: Comb Designmentioning

confidence: 99%

“…1a. Previously, SESAM-based combs have achieved high repetition rates [43] and, with appropriate dispersion compensation, low noise [42,44,45]. Here, the SESAM design is attractive because it is compatible with a PM laser cavity and allows for true self modelocking.…”

Section: Fig 1 Fiber Frequency Comb Design and Performance (A)mentioning

confidence: 99%

“…The SESAM, which has 3% saturable loss and 6% non-saturable loss, is housed in a custom, telecom grade, micro-optic package designed to optimize the fluence at ~ 2 times the SESAM saturation value (20 m diameter spot size), and provide fast-axis blocking. Additionally it prevents direct contact between the Er:fiber and the SESAM which can limit laser lifetime [43]. The laser's output coupler is provided by a broadband, 90% reflective, dielectric coating on the face of an FC/PC fiber connector [43]; this dichroic coupler transmits the 980-nm pump light.…”

Section: Fig 1 Fiber Frequency Comb Design and Performance (A)mentioning

confidence: 99%

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Operation of an optically coherent frequency comb outside the metrology lab

et al. 2014

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We demonstrate a self-referenced fiber frequency comb that can operate outside the wellcontrolled optical laboratory. The frequency comb has residual optical linewidths of < 1 Hz, subradian residual optical phase noise, and residual pulse-to-pulse timing jitter of 2.4 -5 fs, when locked to an optical reference. This fully phase-locked frequency comb has been successfully operated in a moving vehicle with 0.5 g peak accelerations and on a shaker table with a sustained 0.5 g rms integrated acceleration, while retaining its optical coherence and 5-fs-level timing jitter. This frequency comb should enable metrological measurements outside the laboratory with the precision and accuracy that are the hallmarks of comb-based systems.Work of the U.S.

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“…Because the fiber has been designed with a sufficiently large nonlinear parameter, parabolic pulses can be obtained using pulses with a rather small energy; the picojoule range (9 to 80 pJ) is sufficient. Thus, the designed ANDi-MOF can be used for nonlinear reshaping with gigahertz femtosecond lasers, which usually generate picojoule pulses, 18,19 or under conditions of low-quality coupling when a large part of the incident pulse is scattered. Another important feature is that the designed fiber provides a small amount of normal dispersion (β 2 ).…”

Section: Femtosecond Parabolic Pulsesmentioning

confidence: 99%

Tunable stoichiometry of BCxNy thin films through multitarget pulsed laser deposition monitored viain situellipsometry

et al. 2014

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Abstract. The supercontinuum (SC) generated by pumping in anomalous dispersion is sensitive to the input pulse fluctuations and pump laser's shot noises and does not possess a single-pulse waveform, so the incident pulse becomes a noise-like train of spikes. A simple method of creating pulsed lasers with either pulse-maintaining ultrabroad SC or specially shaped pulse waveforms can be implemented using all-normal-dispersion microstructured optical fibers (ANDi-MOFs). An ANDi-MOF with a simple topology and dispersion profile maximum at 800 nm was designed using the effective index method. Its properties and suitability were characterized via numerical simulation of femtosecond parabolic pulse formation and generation of an octave-spanning pulsemaintaining SC using a generalized propagation equation. The designed ANDi-MOF is suitable for resolving both problems and allows some detuning of the pulse's wavelength around 800 nm. However, a better choice for SC generation is pumping at or near the wavelength where the thirdorder dispersion becomes zero. This configuration benefits from the absence of pulse break-up under large pulse energies, which appears otherwise. The fiber can provide a low-cost method for developing supercontinuum sources and a solution to the problems of parabolic waveform formation to meet the needs of optical signal processing and pulse amplification and compression.

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Compact, stable 1 GHz femtosecond Er-doped fiber lasers

Cited by 93 publications

References 19 publications

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Operation of an optically coherent frequency comb outside the metrology lab

Tunable stoichiometry of BCxNy thin films through multitarget pulsed laser deposition monitored viain situellipsometry

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